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All uPVC door and window frames from the Door Supermarket ® are guaranteed against any failure in welded joints and distortion in accordance with the system supplier’s recommendations for a period of not longer than 10 years from the date of installation.


All glass-sealed units supplied by the Door Supermarket ® are guaranteed for a period of not longer than five years from the installation date for the failure of hermetical seals (i.e. misting between the two panes of glass).

Please note that this guarantee DOESN’T cover scratched or broken glass after the installation has been completed.

Any minor imperfections in the uPVC or glass are subject to the supplier’s recommendations and we can provide details upon request. Stained glass and lead work are not guaranteed against fading or discolouration.


All uPVC panels are colour-matched as accurately as possible, however on occasion, we may not be able to supply you with a perfect match. All our door panels are guaranteed for a period of one year against warping and twisting.

Locks & Accessories

Locking mechanisms, hinges and all metallic moving parts are guaranteed for a period of one year subject to regular maintenance by the customer.

Cosmetic deterioration to door and window furniture (handles, door handles, letter plates etc.) due to wear and tear and general weathering are not covered by this guarantee.

If you are attempting to attach fixtures and fittings to or around your new door, please seek advice from the Door Supermarket ® as this may affect your warranty.

General Information

All of the guarantees contained here are given in good faith. However, if after an on-site visit from a company representative it has been deemed that our product/s have been misused, poorly fitted, tampered with or damaged in any way by others, it will render the guarantee null and void and a £75.00 call out charge will be payable.

Any failure of the materials under the terms of this guarantee will be repaired or replaced as necessary at the sole discretion of the Door Supermarket ®.

This guarantee is non-transferable. All goods remain the property of the Door Supermarket ® until payment has been received in full and all funds are cleared through the banking process.

This guarantee is in addition to, and does not affect your statutory rights.

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